Adding and listing machine.



G. B. PUTNAM.

ADDING AND LISTING MACHINE.

' APPLIOATION FILED 00121, '1909. 998,71 6. Patented July 25, 1911.

- 5 SHEETS-SHEET 1.

G. B. PUTNAM.

ADDING AND LISTING MACHINE.

APPLICATION FILED 00121, 1909.

Patbnted July 25, 1911.

5 8 HEETSSHEET 2.

G. B. PUTNAM.

ADDING AND LISTING MACHINE.

APPLICATION 11.21) OUT. 21, 1909.

Patented Jul 25, 1911.

5 BHEETSBKEET 3.

G. B. PUTNAM.

ADDING AND LISTING MACHINE.

APPLIOATIOK FILED 0OT.21, 1909,

Patented July.25, 191 1.

5 SHEBTS-SHEET 4.

m Q Q a G. B. PUTNAM.

ADDING AND LISTING MACHINE.

APPLICATION FILED 0021.21, 1909.

Patented July 25, 1911.

5 SHEETS-SHEET 5.

GEORGE B. PUTNAM, OF SEARSPORT, MAINE,

ASSIGNOR T BURROUGHS ADDING MACHINE COMPANY, OF DETROIT, MICHIGAN, ACORPORATION OF MICHIGAN.

A DING AND LISTING MACHINE.

Specification of Ietters Patent. Patented July 25, 1911 Applicationfiled October 21, 1909. Serial No. 523,828.

To all whom it may concern:

Be it known 'that I, GEORGE B. PU'r AM, a citizen of the United States,residing at Searsport, in the county of Waldo and State of Maine, haveinvented certain new and useful Improvements in Adding and ListingMachines, of which the following'is a specification.

-The object of the present invention is'to so equip an addin and listingmachine that in connection with the printing of a series of addedamounts there may be printed consecutive numbers, beginning withwhatever number may happen to be the proper one .sub-total. It is commonin this type of mafor the first amount recorded.

In machines of the kind to which I have here shown my invention appliedthere are usually a series of amount keys which set stops forreciprocating racks and there is aseries of adding pinions movable intoand out of engagement with the racks and the order of engagement anddisengagement between racks and pinions and the period of engagementwill be regulated according to whether amounts are being added upon thepinions or totals extracted therefrom.

By the present invention as it is here shown carried out, certain of thepinions are appropriated to the work of registering consecutive numbersand by reverse rotation setting up such numbers to be successivelyprinted. This setting up of consecutive numbers involves an operation.similar to that commonly performed in machines of this kind whenstriking what is termed a chine to effect the transfer or carrying movements of pinions by return movement of racks one step beyond normal. Inthe pres: ent embodiment of my invention the consecutive numberregistration is effected by a similar use of racks. Thus it is providedthat whenever there is an accumulating operation upon the pinions whichadd up the amounts, there shall occur this one-step movement beyondnormal of the rack associated with the units pinionof the section ofpinions appropriated to the consecutive disengaged from its racks butwill be immediately rengaged so that there will be backward turning ofpinions to setup the number.

However, provision is made for preventing the printing of such numberunless the operation is one which accumulates an amount. upon the otherpinions. The consecutive numbering section of pinions will remain inmesh with their racks so that having by reverse rotation set up thenumber, these pinions will turn forward again so as to continue toregister this number increased by one, due to the one-step movement pastnormal of the units consecutive numbering rack, if the operation was .anadding one.

Of course eventually the consecutive num-' bermg plnlons should becleared and the present invention provldes for this 1n connection with agrand totaling operationby which the other pinions are cleared. In suchan operation all pinions remain in mesh with racks to be turned backwardto zero thereby and all move out of mesh with the racks so as to be leftat the zero positions, but though the last consecutive number will havebeen set up in type it will not be printed. There would, of course, beno object in printing the consecutive number opposite the amount total.

IVhile, as before stated, there will be a reengagement of theconsecutive numbering pinions with their racks in order to provide forsetting up the number by backward rotation of said pinions, suchrengagement will not occur when at t-he outset of a series of operationsan initial or basic number is to be recorded. This will be done bysetting up on the keyboard such initial or basic number at the same timethat the first amount to be added is set up on the keyboard. Theregistering of the initial or basic number will take place in the samemanner that registering of the first amount takes place. Thus the racksappropriated to the consecutive numbering work will drop distancesdetermined by the depressed keys, while the pinions are disengaged fromthem, and then said pinions will be engaged with the racks for thereturn movement of the latter. This involves disablement of the meansfor reengaging the pinions with the racks as hereinbefore referred to,and such reongagement will simply accompany the reengagement of thebalance of the pinions as in the ordinary operation of adding inmachines of this general type.

jects in view the invention consists in cer- 2 eeepre form part of thisspecification.

Of said drawings Figure 1 represents in left side elevation a machine ofthe well known Burroughs type having incorporated therein a constructionembodying the present invention, the outside supporting frame work andeasing of the machine being omitted and the interior movable part shownat normal. Fig. 2 is a similarview of a portion of the mechanism withparts illustrated as they appear when the initial number to start aconsecutive series has been set upon the keyboard and the handle of themachine drawn forward; Fig. 3 is a cross section taken on the line 33 ofFig. 1; Fig. 4 is a view similar to Fig. 2 but illustrates a differentcondition, to wit, that which obtains when an amount has been set up onthe keyboard, the handle drawn forward and the consecutive numberprinted with an increase of one unit over the initial number or thenumber printed in the preceding operation of the machine; Fig. 5 is aview similar to Figs. 2 and 4 but showing a different positioning ofparts due to depression of the total key, the handle of the machine inthis case being at normal; Fig. 6 is a front elevation of the principalportion of the machine with parts at normal; Fig. 7 is a. verticalsection on the line 7-7 of Fig. 6 looking toward the left'of themachine; Figs. 8 and 9 are views similar to Fig. 7, though illustratinga limited number of the parts shown in the latter and those parts atdifferent stages of the operation which causes registration ofconsecutive numbers;

Fig. 10 is a detail sectional view taken on the line 1010 of Fig. 1;Fig. 11 is a sectional detail View taken substantially on the line 11-11of Fig. 1; and Fig. 12 shows an example of work done by the machine.

.The invention is here illustrated as incorporated in a machine of thewell known Burroughs type exemplified in numerous prior patents, ofwhich it will sufiice to mention the William S. Burroughs Patents, Nos.504,963 and 505,078, issued Sept. 12, 1893, the Macauley Patent, No.823,474, issued June 12, 1906, and the Vincent Patent, No. 913,860,issued March 2, 1909. As is usual in machines of this type, the machinehere shown has a number of rows of depressible amount keys 291 whichoperate through spring-held bell cranks 217 upon stop rods' 270, thelatter having laterally turned front end portions occupying slots inupright fixed plates 210 between which are located segmental racks 610.These racks are carried as usual upon the forward ends of a series oflevers, 611 freely mounted upon a rock shaft 600, said levers extendingin rear of the latter and each carryin a series of type plates 618. Theusual swinging frame or bail 613 is secured to said rock shaft 600 andnormally upholds the forward ends of the levers 611 and the latter asusual have studs 655 occupying slots a in the respective racks, saidstuds being connected to the lower extremities of the racks by springs680. There are the usual studs 650 on the racks normally bearingupwardly against the end edges of pivoted pawls 413, which coact in theusual manner with latches 411. For the purposes of the present inventionone of these pawls, specially designated 413, (Figs. 7 to 9) is modifiedin constriiction as will be specific ally explained hereinafter.

While the above mentioned elements with the exception of said speciallyconstructed pawl have the same characteristics as to make-up andfunction as heretofore, their uses are modified for the purposes of thepresent invention. Thus a number of rows of keys (in the presentinstance four) at the left of the keyboard, are employed only forsetting up the initial or basic number to start a consecutive series,the remaining rows of keys and associated parts alone serving to set up,accumulate and printamounts and record totals of amounts. In the presentinstance there are five of these remaining rows of keys and fivecorresponding pinions 916 (Fig. 6) which coact with the racks 610controlled by said five rows of keys to perform the customary addingfunction. These pinions are mounted as usual in a rocking frame 910carried by a shaft 900 and operated by the usual pitman 914. There aresimilar pinions 916 which coact respectively with the four left-handracks, but these pinions are mounted in a separate rocking 'framejournaled upon the shaft 900 and comprising side plates 910*, crosspieces 910 and intermediate plates 910. A cross rod 910 of the rockingframe 910 passes through slots in the plates of the second rocking frameand the latter is capable of movement independent of the frame 910, thelength of these slots which is sufficient to carry the pinions 916 intoand out of engagement with their racks. Normally these pinions 916 arein mesh with their racks as are the other pinions 916 as shown inFig. 1. However, when the consecutive numbering is in pro ess, after theregistering and recording 0 the initial number, said pinions 916 willnot be disengaged from their racks during advance or lowering of thelatter, as will the other or regular pinions 916 when the racks whichoperate the latter are descending in preparation for the accumulation ofan amount.

There are the usual latches 415, one for each rack, which latches areindividually (118'- placeable by slide strips or bars 214 oper- 3O isvibrated at the Very outset of anoperation I ated by the bell cranks217, butv in the case.

' of the latches 415" which belong to the four left-hand racks, theselatches are normally displaced and though momentarily restored at theoutset of an operation are again displaced to leave 'theseparticularracks free to descend distances determined by back- Ward. rotation ofthe pinions 916 to zero, as

' in the familiar totaling or sub-totaling operation practiced with amachine of this type. This novel control. of the four left-hand latches415 is due to their connection with 415 which takes over said cross rod902,

as clearly shown in Fig. 7 (see also Fig. 6). Said bail is drawnrearward by a spring 988 superior to the sprin s which as usual tend toswing the. latches orward, and hence the bail by draft upon the hooks4:15 holds the latches rearward disengaged from their racks as shown inFigs. 1 and 7.

The aforesaid bail unlike the somewhat s1m1lar bail employed in previousmachines,

of the machine, thereby permitting the latches 'to restore butimmediately retract- 1ng them unless means come into play as hereinafterexplained to prevent the latter action. The point to be noted here isthat these particular latches are disengaged from the correspondingracks so that the latter may descend as the handle of the machine isdrawn forward, Without regard .to depression of keys of thecorresponding rows.

. As to the additional functions of the aforesald ball, it serves, topermit the pinions .45 9-16 to become disengaged from their racks at thevery outset ofan operation and then serves to immediately rengage saidpinions with their racks. The occasion for disengaging these pinionsthus momentarily brought to the printing line.

arises through the necessity of permitting the taking up of the one-stepadditional return movement of a rack or racks associated with suchpinions without affecting the pinlOIlS, so that in backward turning ofthe pin- "ions' thereafter the type corresponding with the registeredconsecutive number will be This will be further' alluded to when I cometo a detailed description of the construction and mode of operation ofparts whereby numbers are consecutively registered and rinted. I shallfirst explain how the initial or registered upon the other pinionsprinted along the same horizontal line with the ini- This is efin thesame way upon an arm 813 secured to the familiar arm 813. Now, when theinitial number is to be registered, the said bail should not immediatelyswing back after having been swung forward by said ,wipe pawl 821 forthe latches must then be under control of the keys 'used to set up theinitial number. Furthermore, as has been stated the swinging forward ofsaid bail permits the pinions 91G to disengage from their racks, and itis necessary when registering the initial number that these pinionsremain so disengaged during the descent of the racks. Therefore, meansare provided under control of the four left-hand banks or rows of keys291, whereby the bail is detained in its forward position until near theclose of the operation of the machine, the pinions 916' being returnedto engagement with their racks at the same time the other pinions 916are returned to engagement with their racks, as in the ordinary addingoperation in machines of this type.

There is a long link 910 pivotally connected at its lower end to. theleft side plate of the second rocking frame which carries the pinions916, and this link at an upperpoint is formed with a lug I) whichnormally engages over a stud Z) on a forward projection of. the leftside piece 922 of the aforesaid bail, a spring I) applied to said linkserving to enforce this engagement of lug and stud, as shown in Fig. 1.

It will be understood that the cross rod 910 of the rocking frame 910normally occupies the rearward ends of the slots in the second rockingframe. Consequently when the frame 910 is swung forward at the outset ofanoperation it wouldtnot'iiecessarily be accompanied by the secondframe. However, as the aforesaid bail rocks forward the said stud I)lowers permitting the second' frame with its pinions to drop'-bygravity.

I to be en aged by a latch c, the latter rendered e ective by depressionof any one of the keys in the four left hand rows. To this end the slidestrips or bars 214 belonging to those rows of keys are formed at anintermediate point with pendent lugs 0 which engage the cross rod 0 of abail (Fig. 3) comprising side pieces a secured to a rock shaft 0journaled in brackets c which depend from the lower plate 212 of thekeyboard. The aforesaid latch 0 is loosely mounted upon said shaft o andhas a portion projecting above the shaft and bent over in front of theleft hand side piece of the bail and also connected by a spring a withsaid side piece, as clearly shown in Fig. 2.v Normally the bail standsforward and the acting end of the latch c is above the path of movementof the finger c as illustrated in Fig. 1. However, rearward movement ofany one of the slidestrips or bars 214 having the lugs (1 will obviouslyswing the bail rearward and through the medium of the spring a carry thelatch along until it strikes the top of the finger 0, when the springwill be put under tension. It follows that when the first mentioned bail922 swings forward, said finger will wipe past the end of the latch andbe caught thereby as illustrated in Fig. 2. Thereby the pinions 91G willbe caused to remain out of mesh with their racks until when theoperating handle starts back these pinions will swing into mesh withsaid racks as the other pinions916 move into mesh with other racks, thisbeing due to the fact that the cross rod 910 is still at the rear endsofthe slots in the secondary frame and consequently when the main frame910 swings back it carries the secondary frame with it.

It will, of course, be understood that depression of'a key or keys inthe four lefthand rows besides detaining one or more latches 115disengaged from racks, will set an appropriate stop or stops for a rackor racks to limit the descent of the latter the same as in any ordinaryadding operation. Hence. when the said racksreturn the numher will ofcourse be registered upon the pin ions 916. It is to be assumed in thisconnection that a key or keys in the remaining rows have also beendepressed, so that an amount is registered upon the pinions 916. Unlessthis has been done the initial num her so registered will not be printedbut will simply stand on the pinions to be printed when an amount isregistered upon the pinions 916, but, of course, it is not to besupposed that the initial number would be registered separately from theamount to which it belongs.

The impression devices are of the ordinary kind comprising pivotedhammers T15, hammer-driving levers 716, restraining latches 717 andpawls 718, connected by springs 780 with said hammer-driving levers. Inorder to prevent the'printing of the number except when an amount isregistered and printed, well as to prevent printing of the consecutivenumber ina totaling or sub-totaling operation, the four left-hand pawls718 are formed with cam notches 00 in the underside in rear of theirpivots and a lever d is pivoted to the frame workintermediate its endand carries at the rear end a laterally projecting pin d which extendsunder said pawls as illustrated in Fig. 11, occupying the notches in thesame so that in forward swinging of the latter they will be carried upby action of,the notch-sides against the pin, preventing theirdisplacing the associated latches 717. The forward arm of the said lever65 has a stud engaging a slot in the rear end of a thrusthar a, thelatter at its forward end being hooked over the cross rod 402 of thefamil-. iar bail 424 which swings rearward whenever an amount key isdepressed. The bar (Z has a step (1 on the upper side at the rear end,which step normally engages under the shaft- (500. Real-ward movement ofthe said bar caused by depression of one or more amount keys carriessaid step sufiiciently to the rear of the shaft (300 to permit rockingof the lever 65 and lowering of the pin ZZ so I as to eliminate thecamming action before mentioned and permit the pawls 718 to remain inengagement with their latches 717 as the pawls swing forward though, ofcourse, if no keys of the left-hand or consecutive numbering section aredepressed the pawls will be lifted by the regular camming action oftheir upturned forward ends against the inclined shoulders of thetypecarriers. It will thus be seen that unless the amount keys aredepressed the said latches will not be released and there will be noprinting of the number which is set up by reason of the descent of racksassociated with said latches. The slide strips 214 operated by keys ofthe four left-hand rows are minus the lugs 214i which operate in theusual manner upon the cross rod 402. Hence, only depression of a key orkeys of the five right-hand rows will permit the printing of the number.

Atthe conclusion of an operation such as above described, wherein theinitial number is registered and recorded, the latch 0' will bedisengaged from the finger 0 so as to leave the parts ready forconsecutive numbering work to be performed in a manner hereinafterdescribed. For the purpose of so disengaging said latch I utilize thefamiliar key-restoring bail whose crossrod, aeting as usual to lift thedetents 21-l and thrust forward the detent strips 214, is designated 202and in the present instance is embraced by the bifurcated rear end of athrust bar 0, the latter having a bifurcated forward end which embracesthe cross rod 0? of the latch operating bail. It will'be understoodthat, as in previous constructions, the said key-restoring bail isrocked forward at the conclusion ofv an operation of the machine. Itscross rod 202 will then thrust the bar 0 forward, thereby rocking saidlatch-operating pawl forward and disengaging the latch by reason of theaction of the left side piece of the bail against the bent over portionof the latch.

1 Coming now to the means for successively adding units to theconsecutive number registrationas additional amounts are registered andrecorded, I again utilize the'bail rod 402 as a means for controllingcertain devices which afiect a one-step turning of the units pinion 916.Thus there is hooked over said cross rod the upper end of a lever F (seeFigs. 7, 8 and 9) which lever is pivoted concentricall or carrying 'aw413 herelnbefore mentioned. The ower end of said lever carries a stud fwhich normally occupies a cam recess f in the'underside of an abutmentpiece pivoted to said pawl. A branch f of said abutment piece has alaterally turned end portion f 1v ich lies under the curved arm of atappet piece f pivoted to the rocking frame 910 at f. This tappet piecehas a laterally turned rear end portion f overlying the branch of theabutment piece. Normally the latter is held down by a spring fconnecting it to the pawl 413. The tappet piece f is also in a loweredposition, due to gravity, wherein an angular forward extension of thesame bears against a shoulder f of the rocking frame 910, all asillustrated in Fi 7 Now,'when a key or keys of the five right hand rowsis depressed, and the bail 402 consequently swung rearward, the lever Fis rocked carrying its lower arm forward and causing its stud ftobamithe abutment piece 7' upward tensionin the spring 7 and liftin thetappet piece g as shown in Fig. 8. en, thereafter, the frame {IIO isrocked forward the tappet piece of course goes alon with it and theresult iS'l that the lateral y turned .rear end portion .of said tappetpiece is carried beyond the abutment piece, whereupon the tappet piecedrops by gravity to the position shown in Fig. 9 with its said laterallyturned portion confronting the laterally turned portion of the branch fof the abutment piece. Then when the accumulator frame 910 rocksrearward the tappet piece swings the pawl 413 back, disengagin it fromthe stud 650 on the rack of the units inion 916. Consequently, when therestormg frame 613 swings up it will, in its final movement, carry saidrack one step upward beyond normal, as happens in the familiar transferor carrying operation in a Burroughs machine. This, of course,'turns theunits pinion 916 one step forward adding a unit to the registration. Atthe con clusion of the operation the bail rod 402 of course swingsforward, rocking the lever F back to normal, but this would not carrythe stud f to the recess f because the latter has been carried rearward,and so the abutment piece f would continue to be upheld by said with thespecial transfer.

stud and the engagement between the laterally t-urned portlons of thetappet piece and abutment piece would continue, as shown in Fig. 9. In asubsequent operation involv ing :the registering and recording of anamount, the pawl 413' would beswung forward by its spring 413 when inthe lower ing of the abnormally. raised rack its stud 650 passed'belowthe acting edge of said pawl, the frame 910 havingin the meantime rockedforward carrying with it the tappet piece f but the latter would stillbe in line with the laterally turned portion of the abutment piece sothat when the frame 910 again rocked rearward the efiect heretoforedescribed would be repeated and vanother unit would be added to theconsecutive number registration, it being understood of course that thelever F was again rocked as the result of setting up the new amount uponthekeyboard. In the event of. a blank operation of the handle when theframe 910 would be rocked without said lever'F having been again movedfrom normal, the restoration of the pawl 413 would carry the recess f'over the stud f and 'then the parts would resume normal relations, suchas illustrated n in Fig. 7. The rearward swing of the awl 413 is limitedby the engagement of a downturned end portion of the lower branch of theabutment piece f with the stud f as illustratedin Fig. 9..

The special transfer or carrying pawl 413" is provided with the usualfoot 413 which serves to stop the highest amount accumulator wheel atzero when' such wheel is turned backward as in the taking of a total orsubtotal. In this connection it should be noted that the usual means areprovided to compel a blank or spacing stroke of the operating handlebefore the total or sub-total key can be depressed. Therefore thecircumstance that with the adding of the last of a series of items oramounts said foot would be standing in a rearward position out of linewith the transfer pin or stud or cam, as the case may be, will notdeprive such foot of its customary function since in the taking of ablank stroke the parts will be restored to normal as above described,leaving the foot in the path of such pin, stud or cam. In the presentinstance the accumulatingor counting wheels are shown equipped with thefamiliar snail-back cam 916 for transfer tripping or zero stoppingpurposes.

The locking means above mentioned for prevent-ing depression of total orsub-total key without first taking a blank or.spacing stroke comprisesthe usual upward extension 424 of the left side piece of the bail 424hereinbefore mentioned, and the usual stud w on the total key bell cranklever 227. It will be understood that said bail is as usual preventedfrom restoring after a series of adding operations, by the abutment ofits cross rod against portions of the transfer latches all and theextension 4:22P is kept under the stud to until in a blank operation thesaid latches are restored to normal.

The carrying of tens between wheels of the counting section takes placein the ordinary way, the cam of the units counting wheel. in passingfrom 9 to 0 tripping a transfer or carrying pawl of regular constructionand arrangement which pawl releases the rack of the tens counting wheel,and so on.

It is, of course, necessary that the usual tripping action betweenimpression devices be suspended between the devices which cooperate withconsecutive numbering type carriers and those which cooperate withamount type carriers. This is efiected in a well known manner, to wit,by simply omitting or removing the overlapping tail of the fourth latch717 from the left, or as the parts are seen in Fig. 11, viewed from therear, the fourth latch 717 from the right. The familiar overlappingtails are here designated by the reference letter y. Of course, it isnot desirable to print a consecutive number in association with a totalor subtotal. The accumulator will at the time contain a consecutivenumber one higher than the last recorded consecutive number and inoperating the machine for total or sub-total the consecutive numberingwheels will be turned to zero along with other wheels which accumulatedthe amounts, and so such consecutive number will be set up in type alongwith the total. It will not, however, be printed, for the reason that,no amount keys 291 having been depressed, the thrust bar (l will nothave been moved rearward and hence the pin d Fig. 1, will be up andconseq uently when the bail carrying pawls 718 swings forward the fourleft-hand pawls will ride up over said pin and clear their latches 717,this being the same effect as producedif the handle is pulled withconsecutive numbering keys down and no amount keys depressed, whicheffect in such connection has already been described.

Although the consecutive numbering impression devices are disabled asabove described when a total or sub-total is taken, it is desirable thatthe consecutive numbering wheels shall performin any such operation inthe same manner as the accumulating wheels, especially when a grandtotal is taken, for then, of course, the consecutive numbering wheelsshould be left at zero. In a sub-total operation the consecutivenumberihg wheels should merely continue to retain the number for usewith the next item recorded. They would do this if they simply remainedidle but it is preferable to return them to zero along with the otherwheels and then advance them. In order to insure action of theconsecutive numberseams ing wheels corresponding with that of theaccumulating wheels in the taking of the total or sub-total, specialmeans are provided for connecting together the two rocking frames 910and 910, such means being under control. of the regular total andsubtotal keys and connections. Thus there is pivoted to a forwardextension of the lefthand side plate 910, at the point 2, a latch Zhooked at its forward end to engage the usual upper stud 958 of theframe 910, but normally held up out of engagement therewith by thepitman 914C as shown in Fig. 1.

An extended straight edge of the latter abuts a similar edge of thelatch to uphold the latter but upon depression of either the total orsub-total keys and consequent lowering of the pitman the latch drops bygravity over the stud 958. This obviously has the effect of connectingtogether the two rocking frames causing them to act as one or as theusual single accumulating frame of the regular Burroughs machine. Thetotal key is designated by the number 265 and as usual surmounts anupstanding arm of the bell crank 227, the latter being connected by thelink 911 with the pitman 914. The subtotal key is designated by thenumeral 265 and surmounts the upstanding arm of a bell crank lever 227,the latter cooperating with the total key and connections as fullydisclosed in the before mentioned Vincent Patent No. 913,860.

In the taking of a total which clears the accumulator it is of coursedesirable that the consecutive numbering wheels be left at zero as wellas the wheels which accumulated the total. Hence, provision is made fordisabling the means hereinbefore described, which, in consecutiveregistering operations rci ngage the consecutive numberingpinions withtheirracks shortly afterthe operation of the machine starts. The form ofmeans here shown comprises an upward extension of the elongated link910, such extension terminating in a broadened portion 5 having aninclined or cam edge, and a stud 6* on the total bell crank lever 227.Then the latter is depressed said stud acting upon said inclined edgecams the link rearward disengaging its lug 7) from the stud Z). Thisdoes not permit disengage ment of the consecutive numbering pinions fromtheir racks as the lowering of the stud 6 does in a consecutivenumbering operation, for the reason that when the total key bell cranklever is depressed the latch Z drops over the stud 958, as previously described.

To now recapitulate as to operation of the entire mechanism, let it beassumed that the machine is at normal, all'the Wheels standing at zeroas indioatedin Fig. 6. The consecutive numbering can start with anynumber from 1 to 9,999 as the machine is here .1

shown arranged, though of course there could hardly be any reason forstartin with the highest number. Referring to the example shown in Fig.12, the consecutive numbering starts with 2,546. The first thing to bedone in starting work such as illustrated by this example, is to pressdown the 2, 5, 4 and 6 ke s in the respective rows or banks at the le tof the keyboard. To

set up the first amount shown in said example the 6, 7, and 2 keys willthen be depressed in the fourbanks to the right. The depression of thekeys at the left of the keyboard has the effect of setting the latch 0in the manner already described in detail. The depression of the keys atthe right has the effect of setting the consecutive numbering mechanismillustrated in Figs. 7, S and 9, Fig. 8 representing the eflect ofdepression of the keys in question. Each one of the keys which has beendepressed will have drawn rearward the associated detent strip or bar214 as in any ordinary Burroughs machine. As to the keys of theright-hand section of the keyboard this retraction of detent strips orbars lifts corresponding latches 415 so as to release the associatedracks. As to the keys of the left-hand section, the latches are alreadylifted as previously explained but the retraction of the detent stripsprovides for detaining the latches when at the outset of the operationthe bail rod 902 which normally held up the latches, swings forward.Retraction of the right-hand detent strips 214 thrusts thebar drearward, as before explained, so as to permit the four left-hand pawls718 to act upon their latches 717. Now, upon drawing forward theoperating handle the action is the same as in any regular Burroughsmachine with the exception that there is no tripping of the fifth latch717 from the left by thefourth latch. Thus the racks, with the exceptionof the fifth rack from the right, whose latch was not lifted, willdescend distances determined by the various stops set by depression ofthe keys and the types will be brought to the printing line setting upthe initial number 2,546 and the amount 67.52 and the number and theamount will be printed. During the descent of the racks the pinions haveall been out of engagement with the same, the right-hand section ofpinions having been disengaged at the outset in the regular way by theaction of the pitman 914 upon the rocking frame 910, and the left-handsection of pinions having dropped out of engagement with their racks atthe outset by reason of the forward rocking of the bail 922 and having Iremained disengaged by means of the latching forward of said bail in themanner here- .inbefore described. As the handle starts rearward theaccumulator frame 910 is rocked in the customary way by the pitman 914and carries with it the frame 910 so that all the pinions are reengagedwith their racks. Then as the racks ascend the pinions will be turnedforward and the amount 67.52 will be registered on the right-handsection of pinions and the first three digits of the initial number willbe registered on the three pinions to the left, but 7 instead of 6 willbe re istered upon the fourth pinion of the left-hand set because withthe rearward rocking of the main accumulator frame 910 the special pawl413 was displaced as hereinbefore described, with the result that therack of said fourth pinion moved a step beyond normal. After theoperation has concluded this special pawl remains displaced both byreason of the fact that said main accumulator frame remains rearward andby reason of the fact that the rack stud 650 has traveled up in front ofthe pawl. Now, at the conclusion of the above described operation thelatch 0' is disengaged from the bail finger 0 in the manner already'described. The initial number having been recorded along with the firstamount as described, the consecutive numbering will continue withoutmanipulation of any key of the left-hand section of the keyboard and nosuch key being depressed the said latch 0 remains inactive as the addingand consecutive numbering continues.

It will have been seen that at the conclusion of the operation the nextconsecutive number has already beenregistered. Therefore, a reversedrotation of the pinions at the left to the zero. positions, as in anordinary totaling operation, will set up in type this next consecutivenumber, to wit, 2,547.

However, the abnormally elevated rack must not descend to normal in meshwith its wheel for the rise of the rack one ste beyond normal representsmovement of which the rack is capable independent of its lever 611 whichcarries the series of type, and so, if the rack was in mesh with thepinion from the beginning in this succeeding operation, the backwardrotation of the pinion seven steps would bring the 6 type to theprinting line and not the 7. The levers 611 have the usual one-stepmovement independent of their racks to bring the ciphers to the printingline and if this one-step movement is partaken of by a rack accompaniedby a one-step backward turning of the corresponding pinion, then thetype set up would be a unit short of that which said pinion had beenregistering. For this reason the action hereinbefore described invdetail takes place, which action momentarily disengages the fourleft-hand pinions from their racks to give time for restoration tonormal of any rack which has in the previous operation risen one stepbeyond normal. In the example under consideration the fourth rack to theright did so rise in the first up on the left-hand section of thekeyboard,

in the present instance 66.52, and the handle then'pulled, said fourthrack from the left descends one step while its pinion is disengaged fromit. Then said pinion immediately reengages said rack and as theoperation continues this pinion and the other three of the left-hand setrotate backward to zero and the number 2547 is set up in type andprinted. Meantime the four righthand racks have descended as controlledby key stops and the amount 66.52 is printed. Now, with the startbackward of the operating handle in this second operation, the specialtransfer pawl 413 is again displaced as has already been described, sothat the fourth rack from the left will again rise one step beyondnormal and another unit will be added 5n the fourth pinion from theleft, making the registration 2,548, it of course being understood thatthe four lefthand pinions remain in mesh with their racks as the latterascend. This itemizing and consecutive numbering can continue as longasdesired producing work such as illustrated in Fig. 13, it beingunderstood that when the fourth pinion from the left passes from 9 tozero it displaces a regular transfer pawl such as illustrated in Fig. 1,so that the third pinion from the left partakes' ofa one-step advancewhich in the example given causes the four left-hand pinions to thenregister 2,550. Now, if a sub-total is to be struck that will be done inthe ordinary way by taking a blank or spacing stroke which restores anydisplaced latches 411 and also restores to normal the consecutivenumbering transfer mechanism illustrated in Figs. 7 to 9, and thendepress ing the sub-total key 265 and ulling the operating handle. Inthe eXamp e given the left-hand pinions will at the time be registering2553 and of course this will not be changed by time taking of the blankstroke since no amount keys are depressed. Neither will therebe-anyprinting of a consecutive numbersince the four left-hand pawls 718 willbe disabled, as has already been explained in detail. In such blankoperation the fourth rack from the left which had in the previousoperation risen one step beyond normal, will be restored to normal whileits pinion is out of mesh with it, and this and the other pinions of theleft-hand set will be run back to zero setting up in type the nextconsecutive number 2,553, but it is not printed for the reason statedand at the conclusion of the operation re-appearsupon the left-hand setof wheels.

In the sub-totaling operation the righthand section of pinions will berotated backward to zero and the sub-total printed in the ordinary wayand so will the lefthand section of pinions be rotated backward to Zeroand then turned forward to once more display the number 2,553 as theother wheels are turned forward to again display the sub-total as 407.92 in theexainple of Fig. 12. The consecutive number 2,553 will not beprinted for the same reason as before, viz: that the four left-handpawls 718 are disabled through the means already described. It will beobvious that if another amount is now set up on the keyboard to be addedto this sub-total the consecutive number 2,553 will be printed with itand the consecutive numbering will continue as before. Now, if a grandtotal is desired, the spacing stroke having been taken as above, thetotal key 265 will be depressed and the handle pulled. This grand totalis printed in the ordinary 'way and the accumulating wheel left at zeroand in this, case the consecutive numbering wheels will also be left atzero. This of course necessitates disengagement of the consecutivenumbering pinions from their racks along with the right-hand pinions. Inthis connection it will be remembered that depression of the total keydisengages the link 910 so that when the bail 910 swings back just afterthe operation has started, it does not present an obstruction todisengagement of said left-hand pinions from their racks. The mainaccumulator frame 910 has of course remained back thus holding allpinions in mesh with their racks during the first half of the operation.The link 910 having been disabled as above described, when the saidframe 910 rocks outwardly at the beginning of the return stroke of thehandle the inner frame 910'" rocks outward with it. Then at theconclusion of the operation when the main accumulator frame is rockedback to rengage the righthand section of pinions with their racks, theinner frame will be carried along by reason of the engagement of thestud 958 with the latch Z as illustrated in Fig. 5.

The usual means are employed to so rock the main frame, comprising arearward extension 910 of the right side piece of the frame, and a stud311 on the familiar full stroke sector 311 acting with a camming effecton the edge of said extension. If instead of starting the w rk with anumber requiring depression of 3a key in each one of the four left-handbanks, the initial number'calls for depression of keysin a less numberof banks, then racks of unused banks will be held up by their latches415, it being remembered that when the initial number is beingregistered and recorded, the latch c is active to prevent the bail rod902 from lifting such latches 4:15.

It will be seen that the construction above described is thoroughlyorganized to accomplish the object stated. At the same time it must beunderstood that the invention is notnecessarily limited to'this oneparticular form of embodiment ,but may be carried out in other ways.

lVhat I claim is: v 1. .In an adding and listing machine, thecombination of a series of adding wheels and reciprocating actuatorsengageable and disengageable; manipulative means for variously limitingadvance of the actuators, the wheels being disengaged therefrom duringsuch advance but engaged therewith during their return movement; zerostops for the wheels; means for keeping a section of said wheels engagedwith the associated actuators during both advance and return movement ofthe latter; means for counting the operations of thebalance of thewheels by one-step turning of a wheel ofthe said section; and printingmechanism including type carriers set by.the actuators.

2. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engagea-ble and disengageable,the actuators having excess movement in the return direction forcarrying purposes; manipulative means for variously limiting advance ofthe actuators, the wheels being disengaged therefrom'during such advancebut engaged therewith during their return movement; carrying mechanismfor effecting excess returnmovement of actuators; zero stops for thewheels; means for keeping a section of said wheels engaged with theassociated actuators during both advance and return movement of thelatter; means for counting the voperations of the balance of the wheelsby 0ne-step turning of. a wheel of the said section through excessreturn'movement of its actuator; and

printing mechanism including type carriers.

set by the actuators.

3. In an adding and listing machine, the combination. of a series ofadding wheels and reciprocating actuators engageable and disengageable,the actuators having excess movement in the return direction forcarrying purposes; manipulative means .for variously limiting advance ofthe actuators, the

wheels being disengaged therefrom during such advance but engagedtherewith during their return movement; carrying mechanism for effectingexcess return *movement of actuators; zero stops for the wheels; meansfor keeping a section ofsaid wheels engaged with the associatedactuators during both advance and return movement of the latter; meansfor counting the opera-7' tions of the balance of the wheels -by onestepturning of a wheel of the said section through excess return movement ofits actuator; means for disengaging the counting section of wheels whilesuch excess movement of said actuator is taken up, said sec tion ofwheels being ree'ngaged with its actuators for continued advancemovement of the latter; and printing mechanism including type-carriersset by the actuators.

4. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engageable and disengageable;manipulative means for variously limiting advance of the actuators; thewheels being disengaged therefrom during such advance but engagedtherewith during their return movement; zero stops for the wheels; meansfor keeping a section of said wheels engaged with the associatedactuators during both advance and return movement of the latter; meansfor counting the operations of the balance of the wheels by one-stepturning of a wheel of the said section; means controlled by themanipulative means associated with said section of wheels, for disablingthe means which keep the lat ter engaged with actuators, during advanceof the same; and printing mechanism ineluding type carriers set by theactuators.

5. In an adding and listing machine, the combination of a series ofadding wheels andreciprocating actuators engageable and disengageable,the actuators having excess movement in the return direction forcarrying purposes; manipulative means for variously limiting advanceofthe actuators, the wheels being disengaged therefrom during such advancebut engaged therewith during' their return movement; carrying mechanismfor effecting excess return movement of actuators; zero stops for thewheels;

means for keeping a section of said wheels 'the latter; means forcounting the operations of the balance of the wheels by onestep turningof a wheel of the said section through excess return movement of itsactuator; means for disengaging the counting section of wheels whilesuch excess move ment of said actuator is taken up,said sec tion ofWheels being re'ngaged with its actuate s for continued advance movementof the utter; means controlled by the manipulative means associated withsaid sec tion of wheels, -for disabling the means which keep the latterengaged with actuators during advance of the same; and printingmechanism including type carriers set by the actuators.

6. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engageabl-c and disengageable;manipulative means for vari-. ouslylimiting advance of the actuators;the wheels being disengaged therefrom during such advance butengagedtherewith during'their return movement; zero stops for the wheels; meansfor keeping a section of said wheels engaged'with the associatedactuators during both advance and, return movement of the latter; meansfor counting the operations of the balance of the wheels by one-stepturning of a wheel of the said section; means controlled by themanipulative means associated with said section of Wheels, for disablingthe means which keep the latter engaged with actuators, during advanceof the same; means for reenabling said latter means at the conclusionof, an

operation of said section of wheels under control of said manipulativemeans; and

' printing mechanism including type carriers set by the actuators.

7. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engageable and disengageable;manipulative means for variously limiting advance of the actuators, thewheels being disengaged therefrom during such advance but engagedtherewith during their return movement; zero stops for the wheels; meansfor'keeping a section of said wheels engaged with the associated actua--tors during both advance and return movement of the latter; means forcounting the operations of the balance of the wheels by one-step turningof a wheel of said section printing mechanism including type carriersset by the actuators; totaling devices for causing engagement of wheelsand actuators during advance of the latter and dis- 1 engagement durinreturn; and means whereby said totaling devices disable the meansaforesaid which keep the counting section of wheels engaged duringreturn of actuators.

8 In an adding and listing machine, the

. combination of a series of adding wheels and reciprocating actuatorsengageable and disengageable; manipulative means for variously limitingadvance of the actuators; the wheels being disengaged therefrom duringsuch advance but engaged therewith during their return movement; zerostops for the wheels; means for keeping a section of said wheels engagedwith the associated actuators during both advance and return movement ofthe latter; means for counting the operations of the balance of thewheels by one-stepturning of a'wheel of the-said section printingmechanism including type carriers set by the actuators, and impressiondevlces for the several type-carriers; totaling devices for caus ngengagement of wheels and actuators during advance of the latter; andmeans whereby, in a totaling the wheels being disengaged therefromduring such advance but engaged therewith during their return movement;carrying mechanism for effecting excess return movement of actuators;zero stops for the wheels; means for keeping a section of said wheelsengaged with the associated actuators during both advance and returnmovement of of the latter; printing mechanism including type-carriersset by the actuators; totaling devices for causing engagement of wheelsand racks during advance and disengagement during return movements ofthe latter; and means whereby said totaling devices disable theaforesaid means for reengaging the counting wheels after the taking upof the excess return movement of an actuator.

10. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tendingto advance; latches individuallyrestraining said carriers by engagement with the racks; pinions in asupport movable to take them out of and into engagement with theracksrespectively, one or more of said pinions being separately mounted in asecondary support movable independently of the first; and means fordisplacing the latches of -the raekstof said separately mounted pinionsto permit their advance in mesh with the latter while other racksadvance disengaged from their pin- 1011s.

11. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normallyrestrained from so doing; pinions in a supportmovable to take them out of and into engagement with the racksrespectively, one or more of said pinions being separately mounted in asecondary support movable independentlyrof the first and all the pinionsbeing normally engaged with the respective racks; and means normallydisplacing the latches of the racks of' said separately mounted pinionsand holding the latter in engagement with their racks, said meansoperable to disengage said pinions from their racks while one-stepmovement of the latter beyond normal is taken up, and then reengage saidpinlons with said racks before the latter advance from normal at thesame time again displacing said latches.

12. In an adding and listing machine, the combination of racks;reciprocating carriers V therefor tending to advance, the racks beinspring-drawn to move a step beyond norma independently of their carriersbut normally restrained from so doing; pinions in a support movable totake them out of. and into engagement with the racks respectively, oneor more of said pinions being separately mounted in a .secondary supportmovable independently of the first; means for permittingone-stepmovement of a rack meshing with a pinion in said secondarysupport, a as a result of pinions outside the latter moving into meshwith their racks while one or more are advanced; and means normallydisplacing the latches of the racks of said separately mounted pinionsand holding the latter in engagement with their racks, said means operabe to disengage said pinions from their racks while one-step movement ofthe latter beyond normal is taken up, and .then reenga e said inionswith said racks before the atter a Vance from normal at the same timeagain -displacing said latches.

13. In an adding and listing machine; the

combination of-racks; reciprocating carriers therefor tending toadvance, the racks being spring-drawn to move a step beyond normalindependently of their carriers but normally restrained from so doing;pinions in a support movable to take them out of and into engagementwith the racks respectively,

I one or more of said pinions being separately I tween the latter andsaid bail; and means for vibrating the bail'to disengage said pinionsfrom and reengage thenrwith their racks and displace said latches.

14. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; pinionsin a supportmovable to take them out of and into engagement with the racksrespectively, one

or "more of said pinions being separately mounted in a secondarysupport. movable independently of the first; means for permit tingone-step movement of a rack meshing with. a pinionin said secondarysupport, as a result of pinions outside the latter moving into mesh withtheir racks while one or more are advanced; a bail having a stud; alinkconnected to the secondary pinion support and shouldered to engagesaid stud; hooks on the latches for racks of pinions in said support,said hooks engaging the cross rod of the bail; and means for vibratingthe latter. 7

15. -In an adding and listing machine, the combination of racks;reciprocatingvcarriers therefor tending to advance, the racks beingspringdrawn to move a step beyond normal independently of their carriersbut normally restrained from so doing; pinions in a support movable totake them out of and into engagement with the racks respectively; one ormore of said pinions being separately mounted in a secondary supportmovable independently of the first; means for permitting1 one-stepmovement of a 'rack meshing wit a pinion in said secondary support, as aresult of pinions outside the latter moving into mesh with them rackswhile one or more are advanced; a bail with which are engaged thelatches for racks of pinions in said secondary support; a connectionbetween the latter and said bail; and an oscillatin arm carrying a wi-pawl to act upon sai bail. 16. In an a ding and listing machine, thecombination of racks; reciprocating carriers therefor tending toadvance, the racks being spring-drawn to move a step beyond normalindependently of their-carriers but normally restrained from so doing;pinions in asupport movable to take them out of and into engagement withthe racks respectively, one or more of said pinions being separatelymounted in a secondary support movable independently of the first; meansfor permitting one-step movement of a rack meshing with a pinion in saidsecondary support,

I as a result of pinions outside the latter moving into mesh with theirracks while one or more are advanced; a bail having a stud; a linkconnected to the secondary pinion sup.- lport and shouldered to engagesaid stud;

ooks on the latches for racks of pinions in said support, said hooksengaging the cross rod of the bail; and an oscillating arm carrying awipe-pawl to act upon said bail.

' 17. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racksbeingspring-drawn to move a step beyond normal independently of theircarriersbut normally restrained from so doing; pinions in a support movable totake them out of and into engagement with the racks respectively, oneormore of said pinions being separately mounted in a secondary supportmovable independently of the first; means for permitting one-stepmovement of a rack meshing with a pinion in said secondary support, as aresult of pinions outside the latter moving into mesh with their rackswhile one or more are advanced; a bail with which are engaged thelatches for racks of pinions in said secondary support; a connectionbetween the l-atter and said bail; means for vibrating the bail todisengage said pinions fromand 'reengage them with their racks mountedin a secondary support movable independently of the first; means forpermitting one-step movement of a rack mesh ing with a pinion insaidsecondary support, as a result of pinions outside the" latter movinginto mesh with their racks while one or more are advanced; a bail havinga stud; a link connected to the secondary pinion support and shoulderedto engage said stud; means for vibrating the bail; and totaling devicesadapted to displace link.

19. In an adding and listing machine,.the combination of racks;reciprocating carriers therefor tending to advance, the racks being-spring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; pinions in a supportmovable to take them out of and into engagement with \the racksrespectively, one or more of said pinions being separately mounted in asecondary support movable independently of the first; means forpermitting one-step movement of a rack meshing'with a pinion in saidsecondary support, as aresult of pinions outside the latter moving intomesh with their racks while one or more are advanced; a bail having astud; a link connected to the secondary pinion support and shouldered toengage said stud and having a cam edge; means for vibrating the bail;and a total key and connections having a stlid to displace the said linkby engagement withthe cam-edge of thelatter.

20. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance; latches individuallyrestraining said carriers by engagement with the racks; pinions in asupport movable to take them out of and into engagement with the racksrespectively, one or more of said pinions. being separately mounted in asecondary support movable independently of the first manipulative meansfor limiting advance of unlatched racks; a

bail connected with the secondary pinion support and with the latchesfor racks of the pinion thereof; means for rocking said bail todisengage the said pinions from their racks and engage the latches withthe latter; and means for holding the bail as so rocked, said meansrendered operative by the aforesaid vidually restrainin said carriers byengage.-

ment with the rac s; pinions in a support movable to take them out ofand into engagement with the racks respectively, one or more of saidpinions being separately mounted in a secondary support movableindependently of the first, manipulative means for limiting advance ofunlatched racks; a bail connected with the secondary pinion support andwith the latches for racks of the pinions thereof; means for rockingsaid bail to disengage the said pinions from their racks and engage thelatches with the latter; and a latch for holding the bail as so rocked,said latch rendered operative by the manipulative means allotted toracks which engage pinions of the secondary support.

22. In an adding and listing machine, the combination of racks;reciprocating carriers therefortending to advance; latchesindividuallyrestraining said carriers by engagement with the racks;pinions in a support movable to take them out of and into engagementwith the racks respectively, one or more of saidpinions being separatelymounted in a secondary support movable independently of the first;depressible keys and connections for limiting advance of unlatchedracks; a bail connected with the secondary pinion support and with thelatches for racks of the pinions thereof; means for rocking said'bail todisengage the said pinions from their racks and engage the latches withthe latter; a latch to hold said bail as so rocked; and strips or barsrendering said latch effective, said strips or bars moved for suchpurpose by depression of keys associated with the racks for the pinions.in the secondary support.

23.\ In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance; latchesindividually' restraining said carriers by engagement with the racks;pinions in a support movable to take them out of and into engagementwith the racks respectively, one or more of said pinions beingseparately mounted in a secondary support movable independently of thefirst; depressible keys and connections for limiting advance of un-Qlatched racks; a bail connected with the seccombination of racks;reciprocating (3&1'1'1618 therefor tending to advance; latchesindividually restraining said carriers by engagement with the racks;pinions in a support movable to take them out of and into en-.- gagementwith the racks respectively, one or more of said pinions beingseparately, mounted in a secondary support movable? independently of thefirst; depressible keys and connections for limiting advance ofunlatchedracks; a bail connected with the sec: ondary pinion support andwith the latches for racks of the pinions thereof; means for rockingsaid bail to disengage the said pinions from their racks and engage thelatches with the latter; a latch to hold said bail as so rocked; detentstrips or bars for the keys, those for keys associated. with the racksof pinions in said secondary frame having lugs; 5 a bail whose cross-baris engaged by saidi lugs; a spring connecting said bail with said Tlatch; and means for disengaging the from the first mentioned bail.

latter factuators during both advance and return 25. In an adding andlisting machine, the

combination of racks; reciprocating carriers therefor tending toadvance; latches individually restraining said carriers by engagementwith the racks; pinions in a support movable to take them out of andinto engagement with the racks respectively, one or more of said pinionsbeing separately mounted in a secondary support movable independently ofthe first; depressible keys and connections for limiting advance ofunlatched racks; a bail connected with the secondary pinion support andwith the latches for racks of the pinions thereof; means for rockingsaid bail to disengage the saidfpinions 'rom their racks and engagethedatches with the latter; a latch to hold'said bail as so rocked;detent strips or bars for; the-keys, those for keys associated withthera'cks of pinions in said secondary frame having lugs; a bail whosecross-bar is engaged by said lugs, and which engages the said latch; aspring connecting said bail bail to disengage the latter from the firstmentioned bail.

--26. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance; latches individuallyrestraining said carriers by enwith the latter and means for rocking theindependently of the first; depressible keys and connections forlimiting advance of unlatched'racks"; a bail connected with thesecondary support and with the latches for racks of the pinionsthereof;,means for rocking said bail to disengage the said pinions fromtheir racks and engage the latches with the latter; a latch to hold saidbail as 1 so rocked; detent strips or bars for the keys, those forkeys'associated with the racks of pinions in said secondary frame havinglugs; a bail whose cross-bar is engaged by said lugs, and which engagesthe said latch; a spring connecting said bail with the latter; a bail torestore detent bars to normal; and a thrust-bar operated by said latterbail and acting upon the second-mentioned bail to disengage the latchfrom the first-mentionedbail.

274 In an adding and listing machine, the combination of a series ofadding, wheels and reciprocating actuators engageable and disengageable;manipulative means for variously limiting advance of the actuators, thewheels being'disengaged therefrom during such advance but engagedtherewith during their return movement; zero stops for the wheels; meansfor keeping a section of said wheels engaged with the associatedmovement of the latter; means-for counting the operations of the balanceof the wheels by one-step turning of a wheel of said section; printingmechanism including type carriers set by the actuators; totaling devicesfor causing engagement of wheels and actuators during advance of thelatter and disengagement during return; means whereby said totalingdevices disable the means aforesaid which keep the counting section ofwheels engaged during return of actuators; and means rendered effectiveby said totaling devices to prevent shifting of counting section ofwheels independently of the balance of the wheels.

28. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engageable and disengageable,the actuators having excess movement in the returndirection for carryingpurposes; manipulative means for variously limiting advance of theactuators, the wheels being disenga ed therefrom during such advancebut" ngaged therewith during their return In vement; carrying mechanismfor effecting excess return movement of actuators; zero stops for thewheels; means for keeping a section of said wheels engaged with theassociated actuators during both advance and return movement of the.latter; means for counting the operations of the balance-of the wheelsby onestep turning of a wheel of the said section through excess returnmovement of its actuator; means for disengaging the countlng section ofwheels while such excess movement of said actuator is taken up, saidsection of wheels being rengaged with its ac- ,tuators for continuedadvance movement of the latter; printing mechanism includingtype-carriers set by the actuators; totaling devices for causingengagement of wheels and racks during advance and disengagement duringreturn movements of the latter; meanswhereby said totaling devicesdisable the aforesaid means for reengaging of pinions; a pitman forrocking the first support; totaling devices for shifting the pitman; alatch for connecting the two rocking supports, said latch normallydisplaced by said pitman; means for successively add- I mg units on thesecond mentioned section 7 said link and thereby normally holding the ofpinions as amounts are accumulated on the first mentioned section ofpinions; means for holding the second section of pinions engaged withtheir racks during both advance and return of the latter while otherracks advance out of mesh with their pinions; means for disabling saidlatter means by the totaling devices; and printing mechanism includingtype carriers set by the racks. 30. In an adding and listing machine,the combination of reciprocating racks; pinions to engage said racksrespectively; a rocking support for a section of said pinions; a secondrocking support for another section of pinions; a pitman for rocking thefirst support; totaling devices for shifting the pitman; a latch forconnecting the two rocking supports, said latch normally displaced bysaid pitman; means for successively adding units on the second mentionedsection of pinions as amounts are accumulated on the first mentionedsection of pinions; a link connected to the second mentioned rockingsupport; a rocking member engaged with pinions on said support in meshwith their racks; means for displacing said link by said totalingdevices; and printing mechanism including type-carriers set by theracks.

31. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; pinions in a supportmovable to take them out of and into engagement with the racksrespectively, one or more of said pinions being separately mounted in asecondary support movable independently of the first; means forpermitting one-step movement of a rack meshing with a pinion in saidsecondary support, as a result of pinions outside the latter moving intomesh with their racks while one or more are advanced; a bail with whichare engaged the latches for racks of pinions in said secondary support;a connection between the latter and said bail; means for vibrating thebail to disengage said pinions from and reengage them with their racksand displace said latches; totaling devices adapted to disable theconnection between the bail and the secondary support; and a latchrendered effective by said totaling device to connect the primary andsecondary supports.

32. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; pinions in a supportmovable to take them out of and into engagement with the racksrespectively, one or more of said pinions being separately mounted in 'asecondary support movable independently of the first; means forpermitting one-step movement of a rack meshing with a pinion in saidsecondary support, as a result of pinions outside the latter moving intomesh with their racks while one or more are advanced; a 'bail having astud; a link connected to the secondary pinion support and shouldered toengage said stud; means for vibrating the bail; totaling devices adaptedto displace the aforesaid link; and alatch rendered eiiective by saidtotaling device to'connect the primary and secondary supports.

33. In an adding and listing machine, the combination of a series ofadding wheels and reciprocating actuators engageable and disengageable;manipulative means for variously limiting advance of the actuators, thewheels being disengaged therefrom during such advance but engagedtherewith during their return movement; zero stops for the wheels; meansfor keeping a section of said wheels engaged with the associatedactuators during both advance and return movement of the latter; meansfor counting the operations of the balance of the wheels by one-stepturning of a wheel of the said section; printing mechanism includingtype-carriers set by the actuators, and impression devices for theseveral type-carriers comprising hammers, restraining detents and pawlsto displace the latter; totaling devices for causing engagement ofwheels and actuators during advance of the latter; and means whereby, ina totalin operation, the impression devices associate with the set ofcounting wheels are disabled, said latter means comprising a lever forfrom normal in such accumulatin displacing pawls and devices renderingsaid lever effective in the totaling operation.

said bail; an abutment to obstruct said bar.

laterally until the latter is moved endwise by depression of a key; alever coupled to said bar and having a laterally projecting pin;impression devices including hammers, detents and pawls, certain of thelatter engaged by said pin; type carriers; racks thereon; pinions toengage the racks; separatev supports for different sections of pinions,one section of the latter corresponding with the pawls en aged by theaforesaid pin; means for shi ting the support for the other section ofpinions to enage the latter with and disengage them rom their racks;totaling devices to adjust said latter means for varying the period ofengagement between racks and pinions; means for adding units upon theother section of pinions to count accumulating operations of the firstsection; means for keeping said other section of pinions en-' gaged withits-racks during advance thereof operations; and means for disablingsald latter means by the totaling devices and for connect-ing the pinionsupports together by the latter.

35. In an adding and listing machine, the.

combination of racks; reciprocating carrlers therefor tending toadvance, the racks bemg spring-drawn to move a step beyond normalindependently of their carriers but normally restrained from so doing;manipulative means for variously limiting advanceof racks from normal;pinions in a support movable to take them out of and into engagement.with the racks respectively, one or more of said pinions beingseparately mounted in a secondary support movable independently of thefirst; and means for permitting one-step movement of a rack meshing witha pinion in said secondary support, as a result of pinions outside the.

latter moving into meshwith their racks While one or more are advanced,said latter" means including a member under control of the aforesaidmanipulative means.

36. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; manipulative means forvariously limiting advance of racks from normal; pinions in a supportmovable to take them out of and into engagement with the racksrespectively, one or more of said pinions being separately mounted in asecondary support movable independently of the first; and means forpermitting one-step movement of a rack meshing witha pinion in saidsecondary support, as a result of pinions outside the latter moving intomesh with their racks while one or more are advanced, said latter meanscomprising a pawl rormally obstructing the rack and carrying aspring-held abutment piece, a tappet-piece on the primary pinionsupport,- and a member controlled by the aforesaid manipulative meansand adapted 'to bring about effective engagement between .the tappetpiece and the abutment piece.

, 37. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; manipulative means forvariously limiting advance of racks from normal; pinlons in a support Imovable to take them out of and into engagement with the racksrespectively, one or more of said pinions being separately mounted in asecondary support movable independently of the first; and means forpermitting one-step movement of a rack meshing with a pinion in saidsecondary support, as a result of pinions outside the latter moving intomesh with their racks while one or more are advanced, said latter meanscom prising a pawl normally obstructing the rack and carrying aspring-held abutment piece, a tappet-piece pivoted on the primary pinionsupport and overlying said abutment piece, and a lever operated by theaforesaid manipulative means and adapted to displace the abutment pieceand tappet-piece so that upon reciprocation of the primary pinionsupport they will coact to displace the pawl.

38. In an adding and listing machine, the combination of racks;reciprocating carriers therefor tending to advance, the racks beingspring-drawn to move a step beyond normal independently of theircarriers but normally restrained from so doing; depressible keys andconnections for variously limiting advance of racks from normal; stripsor bars shifted by said keys; a bail operated by said strips or bars;pinions in a support movable to take them out of and into engagementwith the racks respectively, one

,or more of said pinions being separately abutment-piece, a tappet-piecepivoted on

